Docker容器互联

##创建容器A和容器B
[root@docker ~]# docker images
REPOSITORY                 TAG       IMAGE ID       CREATED        SIZE
centos                     7         8652b9f0cb4c   4 months ago   204MB
[root@docker ~]# docker run -itd -P --name t1 centos:7 bash #创建并运行容器取名T1,端口号自动映射
f643995baac18cd6871fcad776e1d658888aa76f9b42bd151352ccf71a41ea30
### 进入容器A
[root@docker ~]# docker exec -it f643995baac1 bash
[root@f643995baac1 /]# yum install -y net-tools
## 查看容器A的IP地址
[root@f643995baac1 /]# ifconfig    
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.17.0.3  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:ac:11:00:03  txqueuelen 0  (Ethernet)
        RX packets 9914  bytes 14383824 (13.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 5282  bytes 288809 (282.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0



[root@docker ~]# docker run -itd --name t3 --link t1:t1 centos:7 bash  #创建并运行容器取名t3，链接到t1和其通讯
### 进入容器B
[root@docker ~]# docker exec -it e1ded49884b2 bash
[root@e1ded49884b2 /]# yum -y install net-tools
## 查看容器B的IP地址
[root@e1ded49884b2 /]# ifconfig 
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.17.0.5  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:ac:11:00:05  txqueuelen 0  (Ethernet)
        RX packets 3030  bytes 14007918 (13.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2168  bytes 120899 (118.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
## ping t1
[root@e1ded49884b2 /]# ping 172.17.0.3
PING 172.17.0.3 (172.17.0.3) 56(84) bytes of data.
64 bytes from 172.17.0.3: icmp_seq=1 ttl=64 time=0.068 ms
64 bytes from 172.17.0.3: icmp_seq=2 ttl=64 time=0.037 ms
64 bytes from 172.17.0.3: icmp_seq=3 ttl=64 time=0.054 ms
^C
--- 172.17.0.3 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.037/0.053/0.068/0.012 ms
Docker容器互联

Docker容器互联

Docker容器互联

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